14 Utility Patents
#10,750 in Tokyo
#56,711 in Japan
#259,784 in the World
Forward Citations = 181
Company Filing History:


Nippon Steel Chemical Co., Ltd.
4. 1 out of 141
Tonen Corporation
5. 1 out of 4
Nippon Kokan Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today